221020101000011 has 2 divisors, whose sum is σ = 221020101000012. Its totient is φ = 221020101000010.

The previous prime is 221020101000001. The next prime is 221020101000019. The reversal of 221020101000011 is 110000101020122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221020101000011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221020100999956 and 221020101000001.

It is not a weakly prime, because it can be changed into another prime (221020101000019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110510050500005 + 110510050500006.

It is an arithmetic number, because the mean of its divisors is an integer number (110510050500006).

Almost surely, 2^{221020101000011} is an apocalyptic number.

221020101000011 is a deficient number, since it is larger than the sum of its proper divisors (1).

221020101000011 is an equidigital number, since it uses as much as digits as its factorization.

221020101000011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221020101000011 its reverse (110000101020122), we get a palindrome (331020202020133).

The spelling of 221020101000011 in words is "two hundred twenty-one trillion, twenty billion, one hundred one million, eleven", and thus it is an aban number.